HPLC同时测定灯盏细辛注射液中4种有效成分的含量

目的：建立同时测定灯盏细辛注射液中绿原酸、咖啡酸、1,5-二-O-咖啡酰奎宁酸、野黄芩苷的含量测定方法。方法：采用高效液相色谱法，Agilent Zorbax SB-C18(4.6 mm×150 mm,5 μm)色谱柱；流动相A-0.1%甲酸水溶液，B-乙腈，梯度洗脱；流速1.0 mL·min^-1，柱温35 ℃，进样量20 μL。结果：绿原酸、咖啡酸、1,5-二-O-咖啡酰奎宁酸、野黄芩苷分别在0.025～0.800(r=0.999 0)，0.027～0.850(r=0.999 9)，0.062～1.978(r=0.999 7)，0.118～3.770 μg(r=0.999 9)成良好的线性关系，加样回收率分别为97.19%(RSD 1.16%)；100.45%(RSD 1.16%)；97.32%(RSD 1.43%)；103.81%(RSD 0.70%)。结论：本法简便、快捷，结果准确、重复性好，可用于灯盏细辛注射液中4种有效成分的含量测定。

HPLC determination of four active components in dengzhanxixin injection

OBJECTIVE: To establish a method for determination of chlorogenic acid, caffeic acid, caffeoylquinic acid and ScuteIlarin in Dengzhan Xixin injection. METHOD: The HPLC method was carried out on Agilent Zorbax SB-C18 column (150 mm x 4. 6 mm, 5 pim) evaluated with acetonitrile-0.1% formic acid as mobile phase, gradient elution; the flow rate was 1.0 mL x min(-1); the temperatue of column was at 35 degrees C; the detection wavelength was at 335 nm for UV detection. RESULT: The calibration curves were linear in the range of 0.025 to 0.800 microg (r = 0.9990) for chlorogenic acid, 0.027 to 0.850 microg (r = 0.9999) for caffeic acid, 0.062 to 1.978 microg (r = 0.9997) for caffeoylquinic acid and 0.118 to 3.770 microg (r = 0.9999) for scutellarin,respectilely. The average recoveries were 97.19% with RSD 1.16%; 100.45% with RSD 1.16%; 97.32% with RSD 1.43% and 103.81% with RSD 0.70%, respectively. CONCLUSION: The assay demonstrated that the method was simple, it had adequate accuracy and selectivity to quantify the four active components in Dengzhan Xixin injection.